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ChemEng Economics Calculator. Calculate Your Profits.  ChemEng Economics Calculator is a tool used for doing the basic method of estimating the Net Present Value of a process plant. ChemEng Economics Calculator has a variety of quite useful features. It goes through a series of calculations to find the estimate. First of all, with ChemEng Economics Calculator you can choose from «Purchased Cost» of plant items or «Installed Costs» of plant items

Judy's TenKey: New Life to Good Old Calculator  The «great» news about having a free calculator built-in our Windows system doesnt make us excited. No wonder — what it can do, the majority of us can calculate in our head. And making any real-life calculations is totally beyond its capacities; for making those calculations, we need to buy more sophisticated software. But arent we too speedy about burying the good old calculator? Coders